package day01;

import java.util.Arrays;

public class Demo01 {
    public static void main(String[] args) {











/*
  char c9 = '\'';//'是特殊符号 需要 \ 来转译
  char c10= '\\';//\是特殊符号
 char a2 = '啊';
 boolean a_1 = false;
 int $ssd = 1564;
 long u21 = 655461232L;
int as11 = 50/6;
System.out.println(as11);
 char z1 = 35001;
        System.out.println(z1);
        /*double a = 1000000000000000.0     double a1 = 25.678;//25.678为小数直接量，默认为double类型
     float b = 25.678F;//25.678F为float型直接量
     double c =3.0,d = 2.9;
        System.out.println(c-d);//0.10000000000000009无限接近0.1且偏大，发生舍入误差
        double e = 6.99,f = 9.02;
        System.out.println(e+f);//16.009999999999998 比16.01偏小
        float ab = 3.1415f;
        double ac = 3.1415;
        System.out.println(ab);
        System.out.println(ac);
        double b1 = 6,b2 = 5.9;
        System.out.println(b1*b2);//35.400000000000006 偏大*/
















      /*  long a = 25L;//25L为长整型直接量
        long b = 1000000000;//编译错误，100亿默认为int类型，但超出int范围
        long c = 10000000000L;//100亿L为长整型直接量
        long d = 365L*24*60*60*1000;//去年一年所经历的毫秒数
        System.out.println(d);
        long e = 1000000000*2*10l;
        System.out.println(e);//200亿
        long f = 1000000000*3*10l;
        System.out.println(f);//溢出了 不是300亿，是-12949672960
        long g = 1000000000l*3*10;
        System.out.println(g);//300亿
        long ab = 200l;
        long abc = ab*ab;
        System.out.println(abc);
        ab = 5000000000000l;
        abc = ab*ab;
        System.out.println(abc);
*/





        /*

    */}
}
